Hydroxamate production by Aquaspirillum magnetotacticum
نویسندگان
چکیده
منابع مشابه
Freeze-Thawing of Aquaspirillum magnetotacticum Cells Selectively Releases Periplasmic Proteins.
Cells of the gram-negative bacterium Aquaspirillum magnetotacticum, when suspended in buffer and freeze-thawed, produced pinkish orange supernatant fluid. The fluid contained </=2.0% of total extractable outer membrane component 2-keto-3-deoxyoctonate or of the cytoplasmic membrane marker succinic dehydrogenase. Electrophoretic banding patterns and difference spectra of proteins and hemoprotein...
متن کاملMicroaerobic Conditions Are Required for Magnetite Formation Within Aquaspirillum magnetotacticum
The amount of magnetite (Fe304) within mag netosomes of the microaerophilic bacterium AquQspirillum magnetotacticum varies with oxygen and nitrogen supply. The development of optical methods for directly measuring cell magnetism in culture samples has enabled us to quantitate bacterial Fe304 yields. We measured final cell yields. average cell magnetic moments, and magnetosome Yields of growing...
متن کاملAlteration of the Magnetic Properties of Aquaspirillum magnetotacticum by a Pulse Magnetization Technique.
The presence of a narrow shape and size distribution for magnetite crystals within magnetotactic organisms suggests strongly that there are species-specific mechanisms that control the process of biomineralization. In order to explore the extent of this control, cultures of Aquaspirillum magnetotacticum in the exponential growth phase were exposed to increasing magnetic pulses with the aim of s...
متن کاملPhylogenetic analysis of Aquaspirillum magnetotacticum using polymerase chain reaction-amplified 16S rRNA-specific DNA.
The 16S rRNA gene of the magnetotactic magnetogen Aquaspirillum magnetotacticum MS1 was amplified by a polymerase chain reaction, using two eubacterial consensus oligodeoxynucleotide primers flanking the majority of the 16S rRNA gene, cloned, and sequenced. Phylogenetic analysis revealed that A. magnetotacticum MS1 belongs to the alpha-group of proteobacteria. This assignment offers perspective...
متن کاملProduction of L-arginine by arginine hydroxamate-resistant mutants of Bacillus subtilis.
l-Arginine hydroxamate inhibited the growth of various bacteria, and the inhibition was readily reversed by arginine. l-Arginine hydroxamate (10(-3)m) completely inhibited the growth of Bacillus subtilis. This inhibitory effect was prevented by 2.5 x 10(-4)ml-arginine, which was the most effective of all the natural amino acids in reversing the inhibition. l-Arginine hydroxamate-resistant mutan...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1986
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.167.1.73-76.1986